Improvement in carriage-axle connection



J. W. KINGSBURY.

King Bolt.

Patented Oct. 5, 1869.

by in! anorvwy. K

HER, WASNIN waited $21125 pa e atria.

Letters Patent No. 95,488, datedv October 5, 1869.

IMPROVEMENT IN CARRIAGE-AXLE CONNECTION.

The Schedule referred to in these Letters Patent and making part of thesauna.

Toall persons to whom these presents may come.-

Be it known that I, JOHN W. KINGSBURY, of New Bedtord, of the State ofMassachusetts, have invented a new and useful ImprovementinCarriage-Axle Connections; and I do hereby declare the same to be fullydescribed in the following specification, and represented in theaccompanying drawings, of which-- Figure 1 is a frontelevation, and

Figure 2, a longitudinal section of a carriage-axle, springhblock, andking-bolt, as provided with my invention, the main purpose of which isto prevent rattie and noise of the contiguous parts, consequent on wearof the king-bolt and its not while in use.

Another object of my invention is to prevent the leverage and lateralstrai on the kin g-bolt from breaking it, whether in its shank orseparating the head from the shank, or the nut therefrom, asoccasionallytakes place.

In the drawings- A denotes the middle part of an axle.

B, the spring-block or bearing, on-which'the forward elliptical springor the body of-a carriage wholly rests.

The king-bolt, shown at 0, passes up through the axle and thespring-block, and also through the spring, when resting on the block,and is provided, as usual, with a. head, a, at its lower end,. and amale screw, 1), at the upper part of the shank.

Where the male screw projects above the spring or its block, itgenerally has had a nut screwed, upon it, the upper end of the shank ofthe king-bolt subsequently being upset so as to keep the not fromaccidentally working off the screw.

As soon as the surfaces in contact become more or less worn, they willplay apart, and noise and other disagreeable or injurious consequenceswill follow.

in order to keep the axle and the spring-bolt in close contact, and tocompensate for wear of their rubbing-sufiaces and the king-bolt, Iencompass the king bolt, where it projects above the carriage-spring, orthe block B thereof, with .a helical spring, D, and also with a hollowcylindrical cap-nut, 15, formed to receive the spring to encompass it,and screw on the screw 1) of the king-bolt.

I also screw on the said screw, and against the top of the cap-nut, E, acheck-nut, F.

While the cap-nut answers to enclose and hide most of the helical springfrom view, it, with the check-nut, serves to regulate the tension of thespring, the capnut, while in use, not extending down upon the spring orthe spring-block.

A space, s, isdeft between them, in order to enable any sudden lateralstrain on the axle, to be borne by the spring and the head of theking-bolt, rather than by two inelastic bodies, as is commonly the case.

The dangerof breakage of the king-bolt is greatly lessened by the use ofthe helical spring, in manner and with respect to it, and the axle, andspring-block, as specified.

I claim the arrangement of its cap-nut E with the king-bolt G,,itscheck-nut F, the axle A, and the spring-block B, as specified.

! J. W. KINGSBURY.

Witnesses v R. H. EDDY, S. N. Pn'nn.

the helical spring D and

